A unit rate in math is the expression of a rate in a quantity of one. For example, 60 miles per hour represents a commonly used unit rate. Similarly, 30 students per school bus also represents a unit rate. Continue Reading
The symptoms of sinus infection and allergies can be similar. Both can cause symptoms such as runny nose, congestion, headaches, nighttime cough, and difficulty breathing. You are more likely to have a sinus infection if you have fever, colored nasal discharge, and facial or sinus pain.
Below are the primary classifications of sinusitis: 1  Acute: This is an infection that sets in quickly and generally lasts for 10 to 14 days. The symptoms present suddenly and include facial pain and a stuffy or runny nose. 2  Chronic: Chronic sinusitis is a sinus infection lasting for eight weeks or longer.